双参数法在抗滑桩设计中的运用

抗滑桩作为一种主要的滑坡治理工程措施，因其抗滑力强、结构形式简单、适用性广，在滑坡治理中颇为常见，但在确定地基系数K时存在局限性，传统的k法，m法，c法只能作为一种经验性的假设，用双参数法来确定地基系数K．代入桩的挠度曲线微分方程，可以得出桩在任意深度处的位移，转角，弯矩，剪力的解析解，该算法能满足桩在滑面处的位移、转角和最大弯矩值与实测值相等。借助于一工程实例说明运用双参数法确定地基系数K与传统方法相比，能有效地提高抗滑桩设计的经济性和安全性。

The Application of Biparameter Method in the Design of Anti-slide Pile

Anti-slide pile is one of the main structures of slope prevention. It has advantages such as strong resistant power, simple structural style and broad application condition and therefore it is widely used to prevent slide. However, there are some limitations in the confirmation of foundation coefficient K. The traditional methods such as k method, m method, and c method are only based on empirical hypothesis. This paper confirmed that foundation coefficient by means of biparameter method and the analytical solution of pile displacement, turning angle, bending moment and shear force are given by substituting the foundation coefficient to the deflection curve differential equation. This arithmetic can satisfy the pile displacement and curing angle and the biggest moment equal to the factual measure. An engineering example was introduced. It showed that this method can improve anti-slide pile design economy and security, compared with the traditional methods.